4026696
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by Part #4026696, is a specialized fastener produced by Cummins, a renowned manufacturer in the automotive and heavy-duty truck industries. This screw is integral to various commercial truck applications, providing reliable fastening solutions that contribute to the overall performance and durability of truck components. Cummins, with its long-standing reputation for quality and innovation, ensures that this part meets the rigorous demands of the trucking industry.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of bolt characterized by its hexagonal head and a flange beneath the head. The hexagonal shape allows for efficient tightening and loosening using a wrench, while the flange provides additional surface area to distribute the load and prevent the screw from sinking into the material. This design is particularly effective in fastening applications where high torque and secure connections are required.

Purpose and Role in Truck Operation

This Cummins part plays a significant role in the operation and maintenance of commercial trucks. It is used in various truck components, including engine mounts, chassis assemblies, and body panels. By providing a secure and stable connection, this screw helps maintain the structural integrity and alignment of these components, which is vital for the safe and efficient operation of the truck. Its applications extend to both static and dynamic parts, ensuring that critical connections remain intact under varying loads and conditions.

Key Features

This part boasts several key features that enhance its performance and durability. Its hexagonal flange head design allows for easy and precise tightening, reducing the risk of over-tightening or stripping. The screw is typically made from high-strength materials such as alloy steel, which provides excellent resistance to corrosion and wear. Additionally, the flange beneath the head distributes the load more evenly, reducing the likelihood of the screw pulling through the material. These attributes make it a reliable choice for demanding truck applications.

Benefits

The benefits of using the 4026696 include improved fastening security, resistance to vibration loosening, and ease of installation and removal. The flange design helps prevent the screw from loosening due to vibrations, which is common in truck operations. This results in more reliable and durable connections. Furthermore, the hexagonal head allows for straightforward installation and removal using standard tools, facilitating quicker and more efficient maintenance procedures.

Installation and Usage Guidelines

Proper installation of this part is crucial for ensuring its effectiveness and longevity. It is important to follow torque specifications provided by Cummins to avoid over-tightening, which can lead to damage, or under-tightening, which can compromise the connection. Using the correct wrench size for the hexagonal head ensures precise application of torque. Additionally, ensuring that the mating surfaces are clean and free of debris will help achieve a secure and lasting connection.

Troubleshooting and Maintenance

Common issues with the 4026696 may include loosening due to vibrations or corrosion over time. Regular inspections during maintenance checks can help identify these issues early. If loosening is detected, re-tightening to the specified torque is recommended. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosive treatment can help prevent further degradation. Maintaining proper torque and ensuring the screw is in good condition will contribute to its longevity and optimal performance.

Cummins Overview

Cummins is a well-established name in the automotive industry, known for its commitment to quality and innovation. Founded in 1919, the company has a rich history of developing reliable and high-performance engine and component solutions for various industries, including commercial trucking. Cummins’ reputation is built on its dedication to engineering excellence, customer satisfaction, and continuous improvement. The company’s products, including the 4026696, are designed to meet the demanding requirements of modern truck applications, ensuring durability, performance, and reliability.

Hexagon Flange Head Cap Screw (Part 4026696) in Cummins Engines

This Cummins part is a critical component in several of their engine models. This screw is designed to provide a secure fastening solution, ensuring that various parts and assemblies remain tightly secured during operation.

ISM Series Engines

In the ISM series engines, the 4026696 is utilized in the following models:

• ISM CM570/870: This screw is integral in securing certain engine components, ensuring stability and reliability.
• ISM CM876: Here, it plays a crucial role in maintaining the integrity of the engine’s structure.
• ISM11 CM876 SN: The screw is used in this model to fasten specific parts, contributing to the overall robustness of the engine.

ISX Series Engines

The ISX series engines also incorporate the 4026696 in the following variants:

• ISX CM570: This screw is essential for securing various engine components, ensuring they remain in place under operational stresses.
• ISX CM870: It is used to fasten parts that require a high level of security.
• ISX CM871: The screw ensures that critical engine parts are tightly fastened, contributing to the engine’s performance and longevity.
• ISX15 CM2250 SN: In this model, the screw is used to secure components that are subject to significant mechanical forces.

QSM and X15 Series Engines

The 4026696 also finds application in the following models:

• QSM11 CM876: It is used to fasten parts that need to withstand high operational stresses.
• X15 CM2350 X123B: This screw is crucial for securing components in this engine model, ensuring they remain tightly fastened during operation.

The use of the Hexagon Flange Head Cap Screw in these engines underscores its importance in maintaining the structural integrity and operational efficiency of Cummins engines.

Role of Part 4026696 Hexagon Flange Head Cap Screw in Engine Systems

This part is integral to the secure assembly and operation of various engine components. Its design and function are tailored to withstand high stress and provide reliable fastening in demanding environments.

Turbocharger Integration

In turbocharger systems, the Hexagon Flange Head Cap Screw is used to fasten the turbocharger to the engine block or exhaust manifold. This secure attachment is vital for maintaining the turbocharger’s alignment and operational integrity. The screw’s flange head design ensures a tight seal, preventing leaks and enhancing the turbocharger’s efficiency.

Exhaust Manifold Seal Kit

When integrating an exhaust manifold seal kit, the Hexagon Flange Head Cap Screw plays a significant role in ensuring a leak-proof connection between the manifold and the engine block. The screw’s robust construction helps to maintain the seal’s integrity under high temperatures and pressures, contributing to the overall efficiency of the exhaust system.

Mounting and Arrangement

For engine mounting and arrangement, the Hexagon Flange Head Cap Screw is often employed to secure various components in place. Whether fastening brackets, plates, or other structural elements, its flange head provides additional surface area for a more secure grip, reducing the risk of loosening over time.

Captive Washer Cap Screw Applications

In applications where a captive washer cap screw is required, the Hexagon Flange Head Cap Screw can be utilized to ensure that the washer remains in place during assembly and operation. This is particularly important in environments where vibrations and movement could dislodge standard washers, potentially leading to component failure.

General Engine Component Fastening

Across various engine components, the Hexagon Flange Head Cap Screw is a go-to fastening solution. Its design allows for easy installation and removal using standard tools, making it a preferred choice for both initial assembly and maintenance procedures. The screw’s ability to distribute load evenly across its flange head reduces the risk of damage to the fastened components, ensuring longevity and reliability in engine operations.

Conclusion

The 4026696 Hexagon Flange Head Cap Screw is a vital component in the automotive and heavy-duty truck industries, providing secure and reliable fastening solutions for various truck and engine components. Its design, featuring a hexagonal head and flange, ensures easy installation, resistance to vibration loosening, and even load distribution. Proper installation and maintenance are crucial for its longevity and optimal performance. Cummins’ commitment to quality and innovation ensures that this part meets the demanding requirements of modern truck applications, contributing to the overall durability, performance, and reliability of truck and engine systems.